Colloquium: The transport properties of graphene: An introduction

TL;DR

This paper provides an overview of graphene's transport properties, integrating experimental data and theoretical models, emphasizing the role of chirality in understanding key electronic behaviors.

Contribution

It offers an accessible introduction combining experiments and simple models to explain graphene's transport phenomena, highlighting the importance of chirality.

Findings

Chirality is crucial for understanding graphene's conductivity minimum.

Strain effects significantly influence electronic mobility.

Weak localization and optical conductivity are explained through theoretical analysis.

Abstract

An introduction to the transport properties of graphene combining experimental results and theoretical analysis is presented. In the theoretical description simple intuitive models are used to illustrate important points on the transport properties of graphene. The concept of chirality, stemming from the massless Dirac nature of the low energy physics of the material, is shown to be instrumental in understanding its transport properties: the conductivity minimum, the electronic mobility, the effect of strain, the weak (anti-)localization, and the optical conductivity.